One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,6)(3,4,7,8)(9,10,13,12)(11,15,16,14)(17,18,23,25)(19,24,28,31)(20,30,26,21)(22,27,29,32)(9,11,13,16)(10,14,12,15)(17,19)(18,24)(20,29)(21,27)(22,26)(23,28)(25,31)(30,32)(2,6)(3,7)(9,10,13,12)(11,14,16,15)(18,25)(19,28)(20,26)(27,32)(1,3)(2,4)(5,7)(6,8)(9,12,13,10)(11,15,16,14)(17,20,23,26)(18,21,25,30)(19,29,28,22)(24,27,31,32)(1,4)(2,3)(5,8)(6,7)(17,21)(18,26)(19,27)(20,25)(22,24)(23,30)(28,32)(29,31) involution — undirected(17,22,23,29)(18,27,25,32)(19,26,28,20)(21,31,30,24)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.